题解 | 数组计数维护

t = int(input())
for _ in range(t):
    n, k = map(int,input().split())
    a = list(map(int,input().split()))
    s = cnt = 0
    for i in range(n):
        if a[i]>=k:
            s += a[i]
        if a[i]==0 and s>=1:
            s -= 1
            cnt += 1
    print(cnt)